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<div id="overview"><a href="../../../../../../../apidocs/org/apache/torque/engine/database/transform/XmlToData.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <strong>package</strong> <a href="../../../../../../org/apache/torque/engine/database/transform/package-summary.html">org.apache.torque.engine.database.transform</a>;
<a name="2" href="#2">2</a>   
<a name="3" href="#3">3</a>   <em class="comment">/*</em>
<a name="4" href="#4">4</a>   <em class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
<a name="5" href="#5">5</a>   <em class="comment"> * or more contributor license agreements.  See the NOTICE file</em>
<a name="6" href="#6">6</a>   <em class="comment"> * distributed with this work for additional information</em>
<a name="7" href="#7">7</a>   <em class="comment"> * regarding copyright ownership.  The ASF licenses this file</em>
<a name="8" href="#8">8</a>   <em class="comment"> * to you under the Apache License, Version 2.0 (the</em>
<a name="9" href="#9">9</a>   <em class="comment"> * "License"); you may not use this file except in compliance</em>
<a name="10" href="#10">10</a>  <em class="comment"> * with the License.  You may obtain a copy of the License at</em>
<a name="11" href="#11">11</a>  <em class="comment"> *</em>
<a name="12" href="#12">12</a>  <em class="comment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="13" href="#13">13</a>  <em class="comment"> *</em>
<a name="14" href="#14">14</a>  <em class="comment"> * Unless required by applicable law or agreed to in writing,</em>
<a name="15" href="#15">15</a>  <em class="comment"> * software distributed under the License is distributed on an</em>
<a name="16" href="#16">16</a>  <em class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a name="17" href="#17">17</a>  <em class="comment"> * KIND, either express or implied.  See the License for the</em>
<a name="18" href="#18">18</a>  <em class="comment"> * specific language governing permissions and limitations</em>
<a name="19" href="#19">19</a>  <em class="comment"> * under the License.</em>
<a name="20" href="#20">20</a>  <em class="comment"> */</em>
<a name="21" href="#21">21</a>  
<a name="22" href="#22">22</a>  <strong>import</strong> java.io.BufferedReader;
<a name="23" href="#23">23</a>  <strong>import</strong> java.io.File;
<a name="24" href="#24">24</a>  <strong>import</strong> java.io.FileReader;
<a name="25" href="#25">25</a>  <strong>import</strong> java.io.IOException;
<a name="26" href="#26">26</a>  <strong>import</strong> java.net.MalformedURLException;
<a name="27" href="#27">27</a>  <strong>import</strong> java.net.URL;
<a name="28" href="#28">28</a>  <strong>import</strong> java.util.ArrayList;
<a name="29" href="#29">29</a>  <strong>import</strong> java.util.List;
<a name="30" href="#30">30</a>  
<a name="31" href="#31">31</a>  <strong>import</strong> javax.xml.parsers.SAXParser;
<a name="32" href="#32">32</a>  <strong>import</strong> javax.xml.parsers.SAXParserFactory;
<a name="33" href="#33">33</a>  
<a name="34" href="#34">34</a>  <strong>import</strong> org.apache.commons.lang.StringUtils;
<a name="35" href="#35">35</a>  <strong>import</strong> org.apache.commons.logging.Log;
<a name="36" href="#36">36</a>  <strong>import</strong> org.apache.commons.logging.LogFactory;
<a name="37" href="#37">37</a>  <strong>import</strong> org.apache.torque.engine.database.model.Column;
<a name="38" href="#38">38</a>  <strong>import</strong> org.apache.torque.engine.database.model.Database;
<a name="39" href="#39">39</a>  <strong>import</strong> org.apache.torque.engine.database.model.Table;
<a name="40" href="#40">40</a>  <strong>import</strong> org.xml.sax.Attributes;
<a name="41" href="#41">41</a>  <strong>import</strong> org.xml.sax.EntityResolver;
<a name="42" href="#42">42</a>  <strong>import</strong> org.xml.sax.InputSource;
<a name="43" href="#43">43</a>  <strong>import</strong> org.xml.sax.SAXException;
<a name="44" href="#44">44</a>  <strong>import</strong> org.xml.sax.helpers.DefaultHandler;
<a name="45" href="#45">45</a>  
<a name="46" href="#46">46</a>  <em>/**<em>*</em></em>
<a name="47" href="#47">47</a>  <em> * A Class that is used to parse an input xml schema file and creates and</em>
<a name="48" href="#48">48</a>  <em> * AppData java structure.</em>
<a name="49" href="#49">49</a>  <em> *</em>
<a name="50" href="#50">50</a>  <em> * @author &lt;a href="<a href="mailto:leon@opticode.co.za" target="alexandria_uri">mailto:leon@opticode.co.za</a>">Leon Messerschmidt&lt;/a></em>
<a name="51" href="#51">51</a>  <em> * @author &lt;a href="<a href="mailto:jvanzyl@apache.org" target="alexandria_uri">mailto:jvanzyl@apache.org</a>">Jason van Zyl&lt;/a></em>
<a name="52" href="#52">52</a>  <em> * @author &lt;a href="<a href="mailto:mpoeschl@marmot.at" target="alexandria_uri">mailto:mpoeschl@marmot.at</a>">Martin Poeschl&lt;/a></em>
<a name="53" href="#53">53</a>  <em> * @author &lt;a href="<a href="mailto:fedor.karpelevitch@home.com" target="alexandria_uri">mailto:fedor.karpelevitch@home.com</a>">Fedor Karpelevitch&lt;/a></em>
<a name="54" href="#54">54</a>  <em> * @version $Id: XmlToData.java 473814 2006-11-11 22:30:30Z tv $</em>
<a name="55" href="#55">55</a>  <em> */</em>
<a name="56" href="#56">56</a>  <strong>public</strong> <strong>class</strong> <a href="../../../../../../org/apache/torque/engine/database/transform/XmlToData.html">XmlToData</a> <strong>extends</strong> DefaultHandler implements EntityResolver
<a name="57" href="#57">57</a>  {
<a name="58" href="#58">58</a>      <em>/**<em>* Logging class from commons.logging */</em></em>
<a name="59" href="#59">59</a>      <strong>private</strong> <strong>static</strong> Log log = LogFactory.getLog(XmlToData.<strong>class</strong>);
<a name="60" href="#60">60</a>      <strong>private</strong> <a href="../../../../../../org/apache/torque/engine/database/model/Database.html">Database</a> database;
<a name="61" href="#61">61</a>      <strong>private</strong> List data;
<a name="62" href="#62">62</a>      <strong>private</strong> String dtdFileName;
<a name="63" href="#63">63</a>      <strong>private</strong> File dtdFile;
<a name="64" href="#64">64</a>      <strong>private</strong> InputSource dataDTD;
<a name="65" href="#65">65</a>  
<a name="66" href="#66">66</a>      <strong>private</strong> <strong>static</strong> SAXParserFactory saxFactory;
<a name="67" href="#67">67</a>  
<a name="68" href="#68">68</a>      <strong>static</strong>
<a name="69" href="#69">69</a>      {
<a name="70" href="#70">70</a>          saxFactory = SAXParserFactory.newInstance();
<a name="71" href="#71">71</a>          saxFactory.setValidating(<strong>true</strong>);
<a name="72" href="#72">72</a>      }
<a name="73" href="#73">73</a>  
<a name="74" href="#74">74</a>      <em>/**<em>*</em></em>
<a name="75" href="#75">75</a>  <em>     * Default custructor</em>
<a name="76" href="#76">76</a>  <em>     */</em>
<a name="77" href="#77">77</a>      <strong>public</strong> <a href="../../../../../../org/apache/torque/engine/database/transform/XmlToData.html">XmlToData</a>(<a href="../../../../../../org/apache/torque/engine/database/model/Database.html">Database</a> database, String dtdFilePath)
<a name="78" href="#78">78</a>              throws MalformedURLException, IOException
<a name="79" href="#79">79</a>      {
<a name="80" href="#80">80</a>          <strong>this</strong>.database = database;
<a name="81" href="#81">81</a>          dtdFile = <strong>new</strong> File(dtdFilePath);
<a name="82" href="#82">82</a>          <strong>this</strong>.dtdFileName = <span class="string">"file://"</span> + dtdFile.getName();
<a name="83" href="#83">83</a>          dataDTD = <strong>new</strong> InputSource(dtdFile.toURL().openStream());
<a name="84" href="#84">84</a>      }
<a name="85" href="#85">85</a>  
<a name="86" href="#86">86</a>      <em>/**<em>*</em></em>
<a name="87" href="#87">87</a>  <em>     *</em>
<a name="88" href="#88">88</a>  <em>     */</em>
<a name="89" href="#89">89</a>      <strong>public</strong> List parseFile(String xmlFile)
<a name="90" href="#90">90</a>              throws Exception
<a name="91" href="#91">91</a>      {
<a name="92" href="#92">92</a>          data = <strong>new</strong> ArrayList();
<a name="93" href="#93">93</a>  
<a name="94" href="#94">94</a>          SAXParser parser = saxFactory.newSAXParser();
<a name="95" href="#95">95</a>  
<a name="96" href="#96">96</a>          FileReader fr = <strong>new</strong> FileReader (xmlFile);
<a name="97" href="#97">97</a>          BufferedReader br = <strong>new</strong> BufferedReader (fr);
<a name="98" href="#98">98</a>          <strong>try</strong>
<a name="99" href="#99">99</a>          {
<a name="100" href="#100">100</a>             InputSource is = <strong>new</strong> InputSource (br);
<a name="101" href="#101">101</a>             parser.parse(is, <strong>this</strong>);
<a name="102" href="#102">102</a>         }
<a name="103" href="#103">103</a>         <strong>finally</strong>
<a name="104" href="#104">104</a>         {
<a name="105" href="#105">105</a>             br.close();
<a name="106" href="#106">106</a>         }
<a name="107" href="#107">107</a>         <strong>return</strong> data;
<a name="108" href="#108">108</a>     }
<a name="109" href="#109">109</a> 
<a name="110" href="#110">110</a>     <em>/**<em>*</em></em>
<a name="111" href="#111">111</a> <em>     * Handles opening elements of the xml file.</em>
<a name="112" href="#112">112</a> <em>     */</em>
<a name="113" href="#113">113</a>     <strong>public</strong> <strong>void</strong> startElement(String uri, String localName, String rawName,
<a name="114" href="#114">114</a>                              Attributes attributes)
<a name="115" href="#115">115</a>             throws SAXException
<a name="116" href="#116">116</a>     {
<a name="117" href="#117">117</a>         <strong>try</strong>
<a name="118" href="#118">118</a>         {
<a name="119" href="#119">119</a>             <strong>if</strong> (rawName.equals(<span class="string">"dataset"</span>))
<a name="120" href="#120">120</a>             {
<a name="121" href="#121">121</a>                 <em class="comment">//ignore &lt;dataset> for now.</em>
<a name="122" href="#122">122</a>             }
<a name="123" href="#123">123</a>             <strong>else</strong>
<a name="124" href="#124">124</a>             {
<a name="125" href="#125">125</a>                 <a href="../../../../../../org/apache/torque/engine/database/model/Table.html">Table</a> table = database.getTableByJavaName(rawName);
<a name="126" href="#126">126</a> 
<a name="127" href="#127">127</a>                 <strong>if</strong> (table == <strong>null</strong>)
<a name="128" href="#128">128</a>                 {
<a name="129" href="#129">129</a>                     <strong>throw</strong> <strong>new</strong> SAXException(<span class="string">"Table '"</span> + rawName + <span class="string">"' unknown"</span>);
<a name="130" href="#130">130</a>                 }
<a name="131" href="#131">131</a>                 List columnValues = <strong>new</strong> ArrayList();
<a name="132" href="#132">132</a>                 <strong>for</strong> (<strong>int</strong> i = 0; i &lt; attributes.getLength(); i++)
<a name="133" href="#133">133</a>                 {
<a name="134" href="#134">134</a>                     <a href="../../../../../../org/apache/torque/engine/database/model/Column.html">Column</a> col = table
<a name="135" href="#135">135</a>                         .getColumnByJavaName(attributes.getQName(i));
<a name="136" href="#136">136</a> 
<a name="137" href="#137">137</a>                     <strong>if</strong> (col == <strong>null</strong>)
<a name="138" href="#138">138</a>                     {
<a name="139" href="#139">139</a>                         <strong>throw</strong> <strong>new</strong> SAXException(<span class="string">"Column "</span>
<a name="140" href="#140">140</a>                                 + attributes.getQName(i) + <span class="string">" in table "</span>
<a name="141" href="#141">141</a>                                 + rawName + <span class="string">" unknown."</span>);
<a name="142" href="#142">142</a>                     }
<a name="143" href="#143">143</a> 
<a name="144" href="#144">144</a>                     String value = attributes.getValue(i);
<a name="145" href="#145">145</a>                     columnValues.add(<strong>new</strong> ColumnValue(col, value));
<a name="146" href="#146">146</a>                 }
<a name="147" href="#147">147</a>                 data.add(<strong>new</strong> DataRow(table, columnValues));
<a name="148" href="#148">148</a>             }
<a name="149" href="#149">149</a>         }
<a name="150" href="#150">150</a>         <strong>catch</strong> (Exception e)
<a name="151" href="#151">151</a>         {
<a name="152" href="#152">152</a>             <strong>throw</strong> <strong>new</strong> SAXException(e);
<a name="153" href="#153">153</a>         }
<a name="154" href="#154">154</a>     }
<a name="155" href="#155">155</a> 
<a name="156" href="#156">156</a>     <em>/**<em>*</em></em>
<a name="157" href="#157">157</a> <em>     * called by the XML parser</em>
<a name="158" href="#158">158</a> <em>     *</em>
<a name="159" href="#159">159</a> <em>     * @return an InputSource for the database.dtd file</em>
<a name="160" href="#160">160</a> <em>     */</em>
<a name="161" href="#161">161</a>     <strong>public</strong> InputSource resolveEntity(String <strong>public</strong>Id, String systemId)
<a name="162" href="#162">162</a>             throws SAXException
<a name="163" href="#163">163</a>     {
<a name="164" href="#164">164</a>         <strong>try</strong>
<a name="165" href="#165">165</a>         {
<a name="166" href="#166">166</a>             <strong>if</strong> (dataDTD != <strong>null</strong> &amp;&amp; dtdFileName.equals(systemId))
<a name="167" href="#167">167</a>             {
<a name="168" href="#168">168</a>                 log.info(<span class="string">"Resolver: used "</span> + dtdFile.getPath());
<a name="169" href="#169">169</a>                 <strong>return</strong> dataDTD;
<a name="170" href="#170">170</a>             }
<a name="171" href="#171">171</a>             <strong>else</strong>
<a name="172" href="#172">172</a>             {
<a name="173" href="#173">173</a>                 log.info(<span class="string">"Resolver: used "</span> + systemId);
<a name="174" href="#174">174</a>                 <strong>return</strong> getInputSource(systemId);
<a name="175" href="#175">175</a>             }
<a name="176" href="#176">176</a>         }
<a name="177" href="#177">177</a>         <strong>catch</strong> (IOException e)
<a name="178" href="#178">178</a>         {
<a name="179" href="#179">179</a>             <strong>throw</strong> <strong>new</strong> SAXException(e);
<a name="180" href="#180">180</a>         }
<a name="181" href="#181">181</a>     }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>     <em>/**<em>*</em></em>
<a name="184" href="#184">184</a> <em>     * get an InputSource for an URL String</em>
<a name="185" href="#185">185</a> <em>     *</em>
<a name="186" href="#186">186</a> <em>     * @param urlString</em>
<a name="187" href="#187">187</a> <em>     * @return an InputSource for the URL String</em>
<a name="188" href="#188">188</a> <em>     */</em>
<a name="189" href="#189">189</a>     <strong>public</strong> InputSource getInputSource(String urlString)
<a name="190" href="#190">190</a>             throws IOException
<a name="191" href="#191">191</a>     {
<a name="192" href="#192">192</a>         URL url = <strong>new</strong> URL(urlString);
<a name="193" href="#193">193</a>         InputSource src = <strong>new</strong> InputSource(url.openStream());
<a name="194" href="#194">194</a>         <strong>return</strong> src;
<a name="195" href="#195">195</a>     }
<a name="196" href="#196">196</a> 
<a name="197" href="#197">197</a>     <em>/**<em>*</em></em>
<a name="198" href="#198">198</a> <em>     *</em>
<a name="199" href="#199">199</a> <em>     */</em>
<a name="200" href="#200">200</a>     <strong>public</strong> <strong>class</strong> DataRow
<a name="201" href="#201">201</a>     {
<a name="202" href="#202">202</a>         <strong>private</strong> <a href="../../../../../../org/apache/torque/engine/database/model/Table.html">Table</a> table;
<a name="203" href="#203">203</a>         <strong>private</strong> List columnValues;
<a name="204" href="#204">204</a> 
<a name="205" href="#205">205</a>         <strong>public</strong> DataRow(<a href="../../../../../../org/apache/torque/engine/database/model/Table.html">Table</a> table, List columnValues)
<a name="206" href="#206">206</a>         {
<a name="207" href="#207">207</a>             <strong>this</strong>.table = table;
<a name="208" href="#208">208</a>             <strong>this</strong>.columnValues = columnValues;
<a name="209" href="#209">209</a>         }
<a name="210" href="#210">210</a> 
<a name="211" href="#211">211</a>         <strong>public</strong> <a href="../../../../../../org/apache/torque/engine/database/model/Table.html">Table</a> getTable()
<a name="212" href="#212">212</a>         {
<a name="213" href="#213">213</a>             <strong>return</strong> table;
<a name="214" href="#214">214</a>         }
<a name="215" href="#215">215</a> 
<a name="216" href="#216">216</a>         <strong>public</strong> List getColumnValues()
<a name="217" href="#217">217</a>         {
<a name="218" href="#218">218</a>             <strong>return</strong> columnValues;
<a name="219" href="#219">219</a>         }
<a name="220" href="#220">220</a>     }
<a name="221" href="#221">221</a> 
<a name="222" href="#222">222</a>     <em>/**<em>*</em></em>
<a name="223" href="#223">223</a> <em>     *</em>
<a name="224" href="#224">224</a> <em>     */</em>
<a name="225" href="#225">225</a>     <strong>public</strong> <strong>class</strong> ColumnValue
<a name="226" href="#226">226</a>     {
<a name="227" href="#227">227</a>         <strong>private</strong> <a href="../../../../../../org/apache/torque/engine/database/model/Column.html">Column</a> col;
<a name="228" href="#228">228</a>         <strong>private</strong> String val;
<a name="229" href="#229">229</a> 
<a name="230" href="#230">230</a>         <strong>public</strong> ColumnValue(<a href="../../../../../../org/apache/torque/engine/database/model/Column.html">Column</a> col, String val)
<a name="231" href="#231">231</a>         {
<a name="232" href="#232">232</a>             <strong>this</strong>.col = col;
<a name="233" href="#233">233</a>             <strong>this</strong>.val = val;
<a name="234" href="#234">234</a>         }
<a name="235" href="#235">235</a> 
<a name="236" href="#236">236</a>         <strong>public</strong> <a href="../../../../../../org/apache/torque/engine/database/model/Column.html">Column</a> getColumn()
<a name="237" href="#237">237</a>         {
<a name="238" href="#238">238</a>             <strong>return</strong> col;
<a name="239" href="#239">239</a>         }
<a name="240" href="#240">240</a> 
<a name="241" href="#241">241</a>         <strong>public</strong> String getValue()
<a name="242" href="#242">242</a>         {
<a name="243" href="#243">243</a>             <strong>return</strong> val;
<a name="244" href="#244">244</a>         }
<a name="245" href="#245">245</a> 
<a name="246" href="#246">246</a>         <strong>public</strong> String getEscapedValue()
<a name="247" href="#247">247</a>         {
<a name="248" href="#248">248</a>             StringBuffer sb = <strong>new</strong> StringBuffer();
<a name="249" href="#249">249</a>             sb.append(<span class="string">"'"</span>);
<a name="250" href="#250">250</a>             sb.append(StringUtils.replace(val, <span class="string">"'"</span>, <span class="string">"''"</span>));
<a name="251" href="#251">251</a>             sb.append(<span class="string">"'"</span>);
<a name="252" href="#252">252</a>             <strong>return</strong> sb.toString();
<a name="253" href="#253">253</a>         }
<a name="254" href="#254">254</a>     }
<a name="255" href="#255">255</a> }
</pre>
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